But general consensus is the U3 is a terrible miner and you may or may not be able to get it to work, everyone has different results. The best advice for the U3 is to by an R1 from ASICpuppy with custom firmware and let it control the U3.

When my Antminer U3s stop hashing, I usually start with unplug and re-plug the USB cable to bring them up again while BFGMiner is still running. But sometime I have to unplug and re-plug the power as well while BFGMiner is running. And when the last action does not bring the miners into stable state, I have to stop BFGMiner, unplug USB cable first, unplug the power, plug the power, plug the USB cable and start BFGMiner again.

There seems to be different behaviours on the above 3 series of actions. While BFGMiner is running, after I unplug and re-plug the USB cable, does BFGMiner set the chip type, clock, voltage and timing when it realises that the miner is connecting again? How about if I also unplug and re-plug the power while BFGMiner is running? Does it behave the same like when I unplug and re-plug only the USB cable?

Been going back in and out of trying to figure this out for about 2 days now..

--stratum-port just flat out doesnt work for me.

I can start bfgminer with the setting and port, but i just get the SSM: no 2d upstream error continuously scrolling. I can telnet to the stratum port and submit commands which do show up in the miners monitor screen, but the Antminers dont see it as a stratum pool that is alive.

I can probably avoid having to do this all together if I could get BFGminer working on the OpenWRT of the Antminer S1

That error means your pools can't be proxied. Try using another pool.

Cant be proxied? I'm trying this in a solo mining setup at a local wallet. i CAN get BFGminer to do an http-port proxy but not stratum to the local wallet. When using the http-port, my Antminer S1 wont connect at all.

Been going back in and out of trying to figure this out for about 2 days now..

--stratum-port just flat out doesnt work for me.

I can start bfgminer with the setting and port, but i just get the SSM: no 2d upstream error continuously scrolling. I can telnet to the stratum port and submit commands which do show up in the miners monitor screen, but the Antminers dont see it as a stratum pool that is alive.

I can probably avoid having to do this all together if I could get BFGminer working on the OpenWRT of the Antminer S1

That error means your pools can't be proxied. Try using another pool.

Cant be proxied? I'm trying this in a solo mining setup at a local wallet. i CAN get BFGminer to do an http-port proxy but not stratum to the local wallet. When using the http-port, my Antminer S1 wont connect at all.

You're talking to the local wallet with GBT? It is Bitcoin Core or a compatible derivative (ie, not an altcoin)? What exact software/version?http-port is getwork, which is significantly different from stratum.

sigh still no device found on the S1 and S3 after this weekend i may not have any more . I wanted to see it work on S1/3 really did but im buying A6 this week coming sold all my antminer but one it doesn't work, it for parts for Sidehacks boards when they happen .

as far as i can tell all driver are installed so can any one tell me what i might be doing wrong ?. I downloaded it off openwrt the readme way .

bitmain is enabled now in the bfgminer file when I use bfgminer --version it shows it on the enabled list now .

I get it working on S5's with NP .

Im trying to run the same commands as above inside my S1 through a PuTTY session and not having any luck. Installed the bfgminer on it and i can start BFGminer but it will not detect any bitmain devices

I seem to have solved this myself now. For anyone who needs to know. There seems to be a systemd-uvevd bug in Fedora. usb_modeswitch is not executed when the USB stick is inserted. Thus the USB is not treated as a serial device. To fix it i used the following workaround (executed as root)

Will this matter with BFG for GekkoScience Compac BM1384 Stickminer batch 2 ?. BFG won't pick it up batch 2, a few others are having the same issue. batch one works fine with BFG.

I posted this in the https://bitcointalk.org/index.php?topic=1173963.msg13312792#msg13312792 thread asking if there is a issue, I'm not aware of, with batch 2 and BFG ?.This is what side said : "batch 2" sticks are the same as "batch 1" except each stick has a unique serial number is greater than about 480 and he changed the diode on the LED flash circuit.

After this happens the miner slows down and when I press quit it takes a long time to release/shut down/get a command prompt again.

This happens once, twice, three times or not at all for more than 24 hrs. It's random and I'm trying to figure out what is doing this.

I'm using bfgminer 5.2.0 and it does the same on the latest version too. I was trying the earliest version that will run all the monarchs because it's like someone changing the voltage because it's the same if I made a change in the current version of bfgminer and they don't like it and when I quit it take a while before I get the command prompt back.

After this happens the miner slows down and when I press quit it takes a long time to release/shut down/get a command prompt again.

This happens once, twice, three times or not at all for more than 24 hrs. It's random and I'm trying to figure out what is doing this.

I'm using bfgminer 5.2.0 and it does the same on the latest version too. I was trying the earliest version that will run all the monarchs because it's like someone changing the voltage because it's the same if I made a change in the current version of bfgminer and they don't like it and when I quit it take a while before I get the command prompt back.

This has been happening for about two months now.

OS Arch Linux, ample power, original USB cables.

Any help or anyone else having this problem?Thanks

Is this a problem with a Monarch? What firmware version does it have? I have found that firmware version 1.4.5 works great with BFGminer 5.0.0 and up but older firmware

Is this a problem with a Monarch? What firmware version does it have? I have found that firmware version 1.4.5 works great with BFGminer 5.0.0 and up but older firmware

versions can be tricky. Also, are you using a USB hub?

I'm not sure of the firmware but it's an 800+ but my oldest of the batch after warranties for overheating.The 4aa was a key in trying to track this down so I swapped the suspected miner with a brand new one and will try that and report back in 24 hrs or so.

Ya I went through the versions of bfgminer till I got one that worked and it was v 5.2.0 for me... [edit] now running 5.4.1No USB hub just original cables plugged into an old computer running Arch.

Sometimes going through the process of writing it down helps me think of different options.It's hard to find which one it is out of the 4 miners and it's so random but my hypothesis I start with "that" oneand work my way through them till I find the culprit.